Supporting spindle for yarn packages



Feb. 14, 1950 A. ROBERTSON SUPPORTING SPINDLE FOR YARN PACKAGES Filed Sept. 16, 1944 fatented Feb. 14, 15350 SUPPORTING SPINDL'E FOR. YARN PACKAGES Alexander Rohertsofi, Philadelphia, Pa.

Application september 16, 1944, Serial No. 554,483-

6 Claims;

a 1 This invention relates. to spindles 'for. supporting yarn packages inlyarn. package-dyeing. and processingmachines- One-object of the invention isto provide a spindle ofruggedconstruction which will moreefficiently withstandthe rough usage to which these spindles are normally subjected. Another object of the invention is to provide a spindle which will. resist the action of.

the chemicalsand. acids of the dye stuffs, bleaches,.etc. which are circulated through the spindles in passingtoandfrom and through the yarn packages. mounted thereon. Another objectofthe invention is to provide aspindle which will be devoid of crevices or. other recesses-which might trap and retaindye stufli or processing :fiuid used with one batch of material treated in. the aparatus and which might' have a detrimental efiecton thenext succeeding batch.

The construction. of the spindle: forming. the subject; matter offthe present invention will-'be fully. disclosedlhereinafter, reference being. had to the accompanying drawing. of. which Fig; 1 is a.vertical'secticnalyiew through a typical spindlemadein accordance with the present invention;

Fig. 2 is a transverse sectionaLelevation taken on the line.'2i- 2,' Fig; 1;

Fig. Sis a transverse sectional elevation-taken oat-henna 3 -3, Fig; l; and

Fig. 4 is a view similar to Fig. 3,.illustratinga modification of the invention.

As is well known in the dyeingindustry, it is common practice towind variouskinds of yarn in cylindrical packages using perforated vulcanized fibre orotheracidresistingtubes as-thecorcs of 'the packages. These packages are placed on spindles of various kinds employing channeled or perforated hollow constructions which will permitcirculation of the dye stuff, bleach. solution etc. through or around the spindleand outwardly through the perforated core of the yarn package and the yarn thereon into the closed tank or receptacle. of the dyeing. or bleaching. machine, and .vice versa.

The package supporting. spindles. are normally mounted on a hollow head which is adapted to be connected to one side-of a pump for circulating, the processing solution, the. oppositeside of the pump being connected to the interior of the tank'. The piping etc. forms a closedcircuit through which the processing liquid may be circulated by the pump, first in one direction outwardly through the packages, when the spindles are conhected'to the pressure. side of the pump,and theh inw-ardly. throu'ghthe packages; when the spindles are connected to the suction side of the pump. The-direction of'the flow of" the fluid is periodically" reversedto eiiect complete uniform saturation of the yarn packages'by the processing fluid.

Asa result of the above circulation, a certain amountof lint from the yarn is usuallypicked up by the processing fluid'and'carried along therewith. Thesuspended'lint has a tendencyto clog the passages in some forms of spindles in common use in yarn package processingmachines.

One of features ofthe present invention is'to'prcvide a spindle which will be devoid of small perforations or similar passages which would normally become cloggedwi'th the "lint sus-' pended in the processing fluid."

Other forms of spindles heretofore manufacturedand'sold for" the purpose, and designed'to avoidclogging, have been made by cutting spiral grooves in the outer. surface of a solid metal rod. The cutting of'the grooves in the normally solid rod, to provide passages for the fluid, destroys the outer skin on' the metal of which'the spindle is formed. andproducesa more'or less porous surface in the spiral grooves which encourages'the' trapping of acids, pigments, etc. and leaves the metal open to attack by the acids and chemicals of the processing fluids circulated aroundthe spindles.

Furthermore, the cutting of the spiral grooves in the solid rod tends to weaken the finished spindle to such an extent that the spindles'fre qnently become broken when the operatortightens the clamp nut normally threaded on the free end of the spindle ior'holding'the' yarn package firmly against thebase of the'spindle.

The spindle of the present invention is constructed in a mannerv toavoid the above-noted and other diilicultiescommonly known to the art. The present invention consists primarily in providin longitudinal passages in the outer surface of the spindle b'y radially upsetting or deforming the normally cylindrical wall of a seamless tube' composedofacid' resisting metal, such for example as stainless steel.

In one end of the tube is rigidly secured, as by welding, a short threaded stud" on which is mounted the clamp nutnormally employed for securing a yarn package in place on thespindle. The oppositeend of the tube, after the tube has been collapsed to form the longitudinal grooves therein, is rigidly mounted inan axial bore formed in an externallythreaded plug fitting; by which the spindle may be mounted in the hollow head through which the processing fiu'id is circulated, as above noted,

As shown in Fig. 1, a relatively short portion of the length of the initial tube A in its full normal diameter and true cylindrical form is illustrated at a. This short cylindrical portion a of the tube A is adapted to receive a reduced plug section I) of a package securing or retaining stud B. The outside peripheral surface of the stud B is normally flush with the outside peripheral surface of the tube section a, While the outside diameter of the plug section b of the stud B is such as to fit the inside diameter of the tube A tightly, as for example, by a force fit, whereby the stud B will form a sealing plug for the one end of the tube A and the spindle formed thereof.

If desired, the extreme end of the tube A may be beveled, as indicated at aI, and the shoulder bl of the stud B, as formed by the reduction in the diameter of the plug end I) may likewise be beveled to provide a V-shaped circumferentially extending groove in the composite spindle at the juncture of the tube A with the stud B.

In order to insure a rigid connection and absolute liquid seal between the stud B and the tube A, the aforesaid circumferential groove, formed partly by the stud B and partly by the tube A, is filled with a suitable welding or brazing metal which rigidly and permanently unites the elements A and B, and which, like the elements A and B, is resistant to the acids and chemicals of the dyeing and processing fluids with which the spindle may come in contact, it being understood that the tube A and the stud B are preferably composed of stainless steel or other equivalent acid resistant metal.

Below the plug end b of the stud B, the peripheral wall of the tube A is collapsed radially inward, parallel to the axis of the tube A, on circumferentially spaced lines, as shown in Fig. 3, which changes the form of the tube A fro-m its initial cylindrical form or configuration into a longitudinally ribbed formation, consisting of a series of longitudinal ribs I, I, alternating with longitudinal grooves, V-shaped, 2, 2, about the central axial portion 3 of the spindle.

As shown in Fig. 3 there are four ribs I, I which alternate with four grooves 2, 2 whereas in Fig. 4 there are three longitudinal ribs Ia, Ia. alternating with three longitudinal grooves 2a, 2a and it will be understood that any desired number of longitudinal ribs alternating with a corresponding number of longitudinal grooves may be formed in the spindle without departing from the spirit of the invention.

Furthermore, it will be understood that the spindles may be of any desired length and crosssectional dimensions; and that the gauge of the metal of which the initial tubes A are formed, may be in keeping with the diameter and length of the spindle and the purpose to which the spindle is to be put, without departing from the spirit of the invention.

As shown in Figs. 1 and 2, the portion of the deformed tube A, remote to the stud B, is snugly fitted into an axial bore of an attachment plug C, by which the finished spindle may be mounted in the hollow circulating head of the processing machine.

The outer edges of the ribs I, I are adapted to fit snugly within the bore 0 and, in order to secure the cruciform spindle rigidly in the attachment plug C, the outer edges of the ribs are welded or brazed to the wall of the bore 0 of the attachment plug C, as indicated at y, y in Fig. 2.

In order to seal the cruciform spindle, formed by the radially upsetting of the tube A, against entrance of the processing fluids to the interior of the cruciform spindle, the lower ends of the ribs I, I are sealed by brazing or welding an acidresisting metal in the ends of the ribs I, I as indicated at z in Fig. 1.

As shown in Fig. 2 the longitudinal grooves 2, 2 intermediate those portions of the radial ribs I, I which lie within the bore 0 of the attachment plug C form fluid passages 4, 4 'whichextend axially through the attachment plug C and by which the processing fluid may circulate from the hollow head, in which the plugs C are mounted, to the interior of the perforated core tubes of the yarn packages which are mounted on the spindles composed of the deformed tubes A.

In order to clamp the yarn packages firmly on the spindles, the outer free end of the stud B is threaded as indicated at b2, for the reception of a clamp nut D, and in order to maintain the perforated tubes of the packages concentric to the spindle, to afford uniform circulation of the fluid, the attachment plug C and the clampin nut D, if desired, are provided with concentric annular grooves cI, dI respectively, into which the opposite ends of the perforated tubes of the packages are adapted to respectively enter.

As usual the attachment plug C is provided with external tapering threads 02 for threading I into a correspondingly tapered and threaded hole in the hollow circulating head of the processing machine, and above these threads the head C is provided with the usual hexagonal flange 03.

The parallel walls of the longitudinal ribs of the spindle may be spaced apart, as shown in Fig. 3, or these walls may be in contact with each other, as shown in Fig. 4.

I claim:

1. A yarn package supporting spindle comprising an imperforate walled tube having its wall radially deformed longitudinally of the tube into a plurality of circumferentially spaced radially extending longitudinal ribs alternating with a plurality of longitudinal grooves, and an attachment plug having an axial bore into which said ribs and grooves extend.

2. A yarn package supporting spindle comprising an imperforate walled tube having its wall radially deformed longitudinally of the tube into a plurality of circumferentially spaced radially extending longitudinal ribs alternating with a plurality of longitudinal grooves, an attachment plug having an axial bore into which said ribs and grooves extend, and means for securing said ribs to said plug.

3. A yarn package supporting spindle comprising an imperforate walled tube having its wall radially deformed longitudinally of the tube into a plurality of circumferentially spaced radially extending longitudinal ribs, an attachment plug secured to one end of the deformed tube, and a retaining stud secured to the opposite end of the tube.

4. A yarn package supporting spindle comprising an imperforate walled tube having its wall radially deformed longitudinally of the tube into a plurality of circumferentially spaced radially extending longitudinal ribs throughout one portion of its length with a non-deformed portion at one end of the deformed portion of the tube, and a solid stud snugly fitted into said nondeformed portion of the tube.

5. A yarn package supporting spindle comprising an imperforate walled tube having its wall radially deformed longitudinally of the tube into a plurality of circumferentially spaced radially extending longitudinal ribs throughout one portion of its length, a non-deformed portion of the tube at one end of said deformed portion, a solid retaining stud snugly fitted into said non-deformed portion of the tube, and an attachment plug having an axial bore receiving the opposite ribbed end of the tube.

6. A yarn package supporting spindle comprising an imperforate Walled tube having its Wall radially deformed longitudinally of the tube into a plurality of oircumferentially spaced radially extending longitudinal ribs throughout one por tion of its length, a non-deformed portion of the tube at one end of said deformed portion, a solid retaining stud snugly fitted into said non-deformed portion of the tube, and an attachment plug having an axial bore receiving the opposite ribbed end of the tube, said stud and plug being rigidly secured to said tube by Welding.

ALEXANDER ROBERTSON.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,625,585 Archer Apr. 19, 1927 1,789,231 Hebden Jan. 13, 1931 2,220,780 Butterworth Nov. 5, 1940 FOREIGN PATENTS Number Country Date 469,222 Great Britain July 21, 1945 

